Valve



VPatented. eb. 26,71929,

UNITED STATES PATENT OFFICE.

I HERBERT EDWARD PAGE; OF SYRAC'USE, NEW YORK, ASSIGNOR TO UNTED STATESHOFFMAN MACHINERY CORPORATION,

vinirimiva'ma y f .applicationv mea July 2o,

This invention pertains to an improved valve mechanism vand hasreference more particularly to a valve designed to be employed inconnection with garment pressing machines wherein .steam is ejectedthrough the face of the ressing element. l

The main object of the invention isto provide a valve which maybereadily assembled and readily positioned.v

A further object of the invention is to provide a structure wherein thevalve stem ymay be, repacked without cutting oii` the steam 'from theline leading to the head or similar element; in otherzwordaitC may betermed a valve with packing on 'the low pressure side.: l

A. Nfurther. ob'ectof the invention is to provide means whereby theoperator cannot,

through the manipulation of the actuatingl 2o lever or handle of thevalve in a reverse direction from Vthe normal, place unduev pressureupon the valve disk and a still farther object is to provide means forlimiting the movement ofthe handle or lever in its opening movement soas tol regulate the quantity or volumeI of steam which may pass throughthe valve.

The valve structure is shown inthe anneiied drawing wherein Figure l isa sectional elevation thereof, the same being shown as applied to the'steam heated head of a garment pressing machine; and

Figure 2 a transverse sectional view taken on the line 2-2 andillustrating the port-s or passages formed in that portion of the valvestructure adjacent the valve seat.

While the valve is shown in connection with a head or a garment pressingmachine, it is to be understood that its use is not limited thereto andit may be employed for controlling the passage of steam from one chamberto another as may be found desirable. ln other words, theshowing ismerely illustrative of one use to which the valve may be ut.

lin the drawings, 1 denotes a steam chamber formed in the heady 2 -offamachine, l the lower wall of' which is shown as pro u vided with4 athreaded opening into which the valve body, hereinafter described, "1sscrewed.' Underlyng-v/the lower wall of the OF NEW YORK, N. Y., ACORPORATION OF vALvE.

vwie; serial No. 123,739.

head is a perforate plate 3 held in spaced* relation to said lower walland thereby forming a steaming chamber 4.

Thev valve body maybe said to be composed of two parts, a lower portion5 and i an upper'portion 6. The lower end of the lower member 5 isprovided with a taper thread which is screwed ti htly into the- .opemngin the bottom wallg heretofore referred to. Said body element 5 passesfreely through an opening formed in the upper wall of the head and isexternally threaded as at 7 and a jam nut 8 is mounted on such threadedportion. i

A gasket 9 is interposed between the lower face of the nut and theadjacent face of the outer wall so that when said nut is screweddownwardly a steam tight joint is eected at this point. rllhe upper endofthe member 5 is formed with a nut-shaped element 10 which enables thelower member 5 to be.

forcibly screwedinto place in order to effect a steam tightl joint. Theupper end of said member 5 is interiorly threaded and the lower threadedend 1l of the upper member (l munication' with a laterally extendingpas.

sage 18 which opens into the steam chamber of the head,

of the head. rlhe lower portion of the meml ber 5 is counterboredforming a relatively large chamber 19 and said. chamber is ,incommunication with a relativelylarge passage or port ,20, see Figure 2,said portat its upper end opening into 'an upper chamber 21 formed inthe member 5;

As will be seen, the port 20'is of much larger area than theport 18 aswell as larger than the Jort 17, which in effect is a continuation o theport 18.' 3"? -The chamber 21'is formedinuthe lower body element 5 byboring out'the upper ortion thereof, at which time theupstan ing i Iseat 16 is likewise formed. lStated in another way, the body 5 may besaid to be hollow and provided with a cross diaphragm upon the upperface of which the valve seat proper is formed and through which vdiaphragm suitable ports or openings for the passage of the steam areformed. f

The lower end of the valve stem is threaded and is screwedinto a diskholder' 22, the lower end of which is hollowed out to receive a disk orwasher .23 which is held in place by turning over the edge of the cup orrecess in which the disk is seated.

rlhe stem 15 may be held in its position with reference to the diskholder 22 by any suitable means as, for instance, by a locknut 24 and aninterposed lockwasher 25. A

spring 26 bearing upon the outwardly ex-l tending portion of the disk'holder` and against the lower end of the upper body element 6V tends toforce the stem downwardly and to hold the disk 23 against the seat 16and to thus shut o' the low otvluid through the ports or passages.-

Thebody member 6 is provided at its upper end with a polygonal ornut-shaped member 27 and is externally threaded, adjacent its lowerportion, to receive a nut 28. Prior to the placement of the nut inposi.- tion, the body `meinber is passed through the eye 29 formed uponthe lower end of a4 bracket 30, which bracket forms the support for theoperating lever of the valve. Said bracket, at its upper end, isbifurcated to receive` the valve operating lever 31 whichlever isulcrumed upon a pin 32Ksecured in the bifurcated upper portion. Thelever is prov1ded with one short arm 33 which passes into the openingformed in a clevis 34, which 4 latter is secured to the upper threadedend of the valve stem 15.- 'llhe short arm 33 unr derlies 'a roller 35mounted in the upper end of the clevis. rll`his construction providesfor easy manipulation of the valve upon depression of the lever 31 whenthe operator pulls down upon the handle 31l1 mounted upon the outer endofthe long arm of the lever. l

.To-prevent strain being placed upon disk 23 by forcing the leverupwardly, said lever :is` provided with a depending lug or arm 36 whichstands adjacent to the upstanding portion vofthe bracket 30 and bontaetsthe same `when the lever is moved counter clock-wise.

To limit the downward movement of the llever 31 and the consequentopening et the Valve, which opening of course willregulate, the amountof steam which passes through the valve, a stop means is provided forthe lever. This, in the instant case,'is shown as a'lug or enlargement36a. Jformed upon the under face of the lever, said lug standing inalignment with a stop screw or bolt 37 threaded into an outwardlyprojectthe A locking nut 39 isprovided forholding the n screw or bolt 37in its adjusted position. i

vFrom the foregoing it is thought that the operation of the valve willbe clear. By arranging the ports in the manner above described,l that isto say, byjmaking the exhaust port 2O materially larger than the inletport. 17-18, no `considerable amount of steam pressure will be presentin the chamber 21-and consequently the tendency for steam to leak outpast' the valve stein is minimized. Furthermore, the valve stem may berepacked without the necessity of' f` cutting off the steam, inasmuch asthe spring will hold lthe valve to its seat and prevent steam frompassing upwardly along the stem when the gland13 is removedwlth a View.to replacing the packing. Again, the valve may be screwed into placewithout any need for disassembling the samel `for it one merely, backsthe nut 28 away from the eye 29 of the bracket 30, the valvelas a wholemay be screwed to place whilel the bracket and lever remain at rest, thestem', ofcourse,

at such time likewise remaining at rest' by reason of the engagement ofthe short arm with the clevis 34. At such time it may be desirable toraise the valve 4from its seat inorder to prevent grinding action upothe disk. A'

Having thus described my invention, what l claim is: L 1. In a-valve thecombination of a body iA a valve seat formed thereln; va -valve stem.

mounted for endwise-moveinent in the ,body l toward and from' the seat;'a valvedisk movable with the stein; a bracket extending upward fromthey upper end of the body an operating lever ulcrumednin theu'pper endof the bracket with one end thereoi3 overlying the upper'end of thestem; and a the adjacent end of the lever.

2. In a valve the combination of a body; av

roller secured to the stem and 'overlying able with the stem; abracket'extending upl ward from the upper end of the body; an operatinglever fulcrumed in the u per end of the bracket; a'clevis secured to t1e upper 'end ofthe stem; and a roller carried bythe clevis, said rolleroverlying the short end of the lever which extends through the clevis.l

3. In a valve thel combination of a body; a valve seat formed therein; avalve stem mounted for endwise movement in the body toward and from theseat; a valve .disk mov.-

able with Ithe stern; a bracket supported by v and-extending upwardlyfrom the-body; an

operating lever fulcrumed in the upper end.l

of the bracket; connections between said lever and the valve stem; anda' stop lug l extending downwardlyfrom the lever and maaier arranged tocontact the bracket, said lug serving to prevent undue movement of thelever in that direction which would impose undue pressure upon the disk.

4f. A. valve asset forth in claim 3 wherein means is provided forlimiting the valve opening movement of the lever.

5. A valve as set forth in claim 3 wherein an adjustable stop is rovidedon the bracket to contact and limit t e valve opening movement of thelever.

6. lin a valve the combination with a hollow body portion; a diaphragmtherein having inlet and exhaust ports formed therein, the latter beingof materially greater area than that of the inlet; a valve seat formedaround the latter; a valve stem; a disk associated therewith; and meansfor actuating the stem.

7. ln a valve the combination with a hollow body portion; adiaphragmtherein; a valve seat formed on the upper face of thediaphragm; an inlet port extending from the exterior of the body throughthe diaphragm and terminating within the Seat; a discharge port of'materially larger area extending through the diaphragmand terminatingwithin the hollow body portion; a valve stem; a disk for closing theinlet port associated with the stern; a closure for the upper end of thehollow body portion and through which the stern passes; a packing glandcarried by the closure; and means for actuating the stem.

8. In a valve the combination of a hollow valve body; a valve seatlocated therein and controlling an inlet port, said body likewise havingan exhaust port of relatively larger area than that of the inlet port,said discharge port opening adjacent the valve seat at one end and atits opposite end into the lower hollow portion of the body; a valve stemextending upwardly through the hollow body; a closure for the upper endof the hollow body and through which the valve stem extends and apacking gland mounted in said closure and functioning to produte altight joint around the stem.

In testimony whereof I have signed my name to this specification.

HERBERT EDWARD PAGE.

